[vlc-devel] [PATCH 00/20] MR: Finishing vout life cycle work

Thomas Guillem thomas at gllm.fr
Tue May 7 11:50:55 CEST 2019


On Tue, May 7, 2019, at 11:45, Rémi Denis-Courmont wrote:
> Hi,
> 
> To merge the locks, will you remove locking from within the UI event loop, or remove the event loop while holding the lock? How?

I'm testing it with https://code.videolan.org/tguillem/vlc/commit/1a96722d22fddcdde1f50a47a609e8229a332943

And indeed, it deadlocks.
> 
> Le 6 mai 2019 19:15:48 GMT+03:00, Thomas Guillem <thomas at gllm.fr> a écrit :
>> Here is the new version https://code.videolan.org/tguillem/vlc/tree/vout-life/6
>> 
>> This new MR fixes comments addressed in the previous MR.
>> cf. https://code.videolan.org/tguillem/vlc/commit/1d4d6cbc54b87ac7cf4d40876f2c0a80e60f3c2c#note_34282
>> 
>> Here are the big changes:
>> 
>> - The commit "resource: reduce lock scope when starting the vout" has been removed, but the merge of the 2 input resource locks has been kept.
>> 
>>  - These 3 commits fix vout recycling:
>> 
>> "resource: add input_resource_StopFreeVout"
>> "vout: add vout_Pause"
>> "input: fix vout recycling"
>> 
>>  - This commit "resource: respect vout order" fixes vout ordering from input resources.
>> 
>> On Tue, Apr 30, 2019, at 10:41, Thomas Guillem wrote:
>>> This set continue the previous work that was designed to always keep one valid
>>> vout (the main one). Vout life cycle will behave like aout life cycle. This
>>> will simplify variable/options handling.
>>> 
>>> The branch can be found on VideoLan gitlab:
>>> https://code.videolan.org/tguillem/vlc/commits/vout-life/5
>>> You can comment on it.
>>> 
>>> The first commit fixes a crash on macOS. Double vlc_mutex_destroy() doesn't seem
>>> to be detected on Linux, even with Asan.
>>> 
>>> The second commit fixes asserts within the vout that can be triggered when vout
>>> functions are called while it is stopped (window disable + no vout display
>>> plugin).
>>> 
>>> The ressource commits change vout holding/creation from input resources. The
>>> vout is now created from the first input_resource_Hold() call (if it was not
>>> created by a decoder before).
>>> 
>>> The player commits remove previous hacks that was needed because the main vout
>>> was not always created. Now that the player has always a valid vout, it can now
>>> store variables/option on it.
>>> 
>>> The macOS/Qt commits change the way options (like filters) are passed to vouts.
>>> Options are now saved on the main vout and not on the playlist/interface/player
>>> anymore. This causes a change of behavior when there are several vouts (options
>>> are now only applied to the main vout). If an user want options to be applied
>>> on all future vouts, he can save the filter settings from the dialogs.  This
>>> cause future var_Inherit to fetch the variable from the new saved config.
>>> 
>>> The last patch disable skins2 in order to be able to remove the legacy
>>> playlist.
>>> 
>>> Thomas Guillem (20):
>>>   vout: fix double mutex destroy
>>>   vout: don't call vout_SizeWindow without a valid format
>>>   resource: remove intermediate functions
>>>   resource: merge both locks
>>>   resource: reduce lock scope when starting the vout
>>>   resource: add input_resource_HoldVoutLocked
>>>   resource: always return a valid vout from HoldVout*()
>>>   resource: don't allow to terminate vouts
>>>   player: document vout lifecycle
>>>   player: remove vlc_player_vout_SetFilter
>>>   player: remove vlc_player_SetVideoSplitter
>>>   player: change vout events
>>>   hotkeys: re-indent after last commit
>>>   test: player: test outputs
>>>   qt: PlayerController: simplify getVout()
>>>   qt: setup filter variables on the main vout
>>>   macosx: setup effect variables on the main aout
>>>   macosx: setup filter variables on the main vout
>>>   gui: disable skins2
>>>   remove vlc_playlist_legacy
>>> 
>>>  include/vlc_input.h                           |   5 -
>>>  include/vlc_interface.h                       |   8 -
>>>  include/vlc_player.h                          |  85 +-
>>>  include/vlc_playlist_legacy.h                 | 429 ---------
>>>  lib/media.c                                   |   1 -
>>>  lib/playlist.c                                |   2 -
>>>  modules/control/gestures.c                    |  20 +-
>>>  modules/control/hotkeys.c                     |  42 +-
>>>  modules/gui/Makefile.am                       |   2 +-
>>>  .../coreinteraction/VLCVideoFilterHelper.m    |  76 +-
>>>  .../panels/VLCAudioEffectsWindowController.m  | 225 ++---
>>>  .../panels/VLCVideoEffectsWindowController.m  | 151 +--
>>>  .../gui/macosx/playlist/VLCPlayerController.h |  14 -
>>>  .../gui/macosx/playlist/VLCPlayerController.m |  26 +-
>>>  modules/gui/qt/components/extended_panels.cpp |  43 +-
>>>  .../gui/qt/components/player_controller.cpp   |  16 +-
>>>  modules/gui/qt/dialogs/epg.cpp                |   1 -
>>>  po/POTFILES.in                                |  10 -
>>>  src/Makefile.am                               |  13 -
>>>  src/check_symbols                             |   3 +-
>>>  src/input/es_out.c                            |  26 -
>>>  src/input/input.c                             |   1 -
>>>  src/input/input_interface.h                   |   7 -
>>>  src/input/meta.c                              |   1 -
>>>  src/input/player.c                            |  73 +-
>>>  src/input/resource.c                          | 198 ++--
>>>  src/input/vlm.c                               |   1 -
>>>  src/interface/interface.c                     |  36 -
>>>  src/libvlc-module.c                           |   1 -
>>>  src/libvlc.c                                  |   2 -
>>>  src/libvlccore.sym                            |  44 -
>>>  src/playlist_legacy/aout.c                    | 124 ---
>>>  src/playlist_legacy/control.c                 | 147 ---
>>>  src/playlist_legacy/engine.c                  | 501 ----------
>>>  src/playlist_legacy/item.c                    | 883 ------------------
>>>  src/playlist_legacy/loadsave.c                |  67 --
>>>  src/playlist_legacy/playlist_internal.h       | 186 ----
>>>  src/playlist_legacy/renderer.c                |  51 -
>>>  src/playlist_legacy/search.c                  | 130 ---
>>>  src/playlist_legacy/services_discovery.c      | 242 -----
>>>  src/playlist_legacy/sort.c                    | 376 --------
>>>  src/playlist_legacy/thread.c                  | 533 -----------
>>>  src/playlist_legacy/tree.c                    | 427 ---------
>>>  src/video_output/video_output.c               |   9 +-
>>>  test/src/input/player.c                       |  71 +-
>>>  45 files changed, 433 insertions(+), 4876 deletions(-)
>>>  delete mode 100644 include/vlc_playlist_legacy.h
>>>  delete mode 100644 src/playlist_legacy/aout.c
>>>  delete mode 100644 src/playlist_legacy/control.c
>>>  delete mode 100644 src/playlist_legacy/engine.c
>>>  delete mode 100644 src/playlist_legacy/item.c
>>>  delete mode 100644 src/playlist_legacy/loadsave.c
>>>  delete mode 100644 src/playlist_legacy/playlist_internal.h
>>>  delete mode 100644 src/playlist_legacy/renderer.c
>>>  delete mode 100644 src/playlist_legacy/search.c
>>>  delete mode 100644 src/playlist_legacy/services_discovery.c
>>>  delete mode 100644 src/playlist_legacy/sort.c
>>>  delete mode 100644 src/playlist_legacy/thread.c
>>>  delete mode 100644 src/playlist_legacy/tree.c
>>> 
>>> -- 
>>> 2.20.1vlc-devel mailing list
>>> To unsubscribe or modify your subscription options:
>>> https://mailman.videolan.org/listinfo/vlc-devel
>> vlc-devel mailing list
>> To unsubscribe or modify your subscription options:
>> https://mailman.videolan.org/listinfo/vlc-devel
> 
> -- 
> Envoyé de mon appareil Android avec Courriel K-9 Mail. Veuillez excuser ma brièveté. 
> _______________________________________________
> vlc-devel mailing list
> To unsubscribe or modify your subscription options:
> https://mailman.videolan.org/listinfo/vlc-devel
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.videolan.org/pipermail/vlc-devel/attachments/20190507/e8a630a0/attachment.html>


More information about the vlc-devel mailing list